Italian Journal of Pediatrics

Table 2 The prevalence and demographic data of children hospitalized with M. pneumoniae and C. pneumoniae infection

From: Epidemiology and associations with climatic conditions of Mycoplasma pneumoniae and Chlamydophila pneumoniae infections among Chinese children hospitalized with acute respiratory infections

	M. pneumoniae ^a	C. pneumoniae ^b	Co-infection ^c
Age	n/total (%)	n/total (%)	n/total (%)
<1 year	80/817 (9.8)	40/817 (4.9)	8/817 (0.1)
1 to 5 years	75/616 (12.2)	30/616 (4.9)	5/616 (0.1)
>5 years	44/165 (26.7)	11/165 (6.7)	2/165 (0.1)
Total	199/1598 (12.5)	81/1598 (5.1)	15/1598 (0.1)
Demographics	n (%)	n (%)	n (%)
Total (male)	116 (58.3)	46 (56.8)	9 (60)
Prematurity	12 (6.0)	4 (4.9)	1 (6.7)
PICU Admission	1 (0.5)	0 (0)	0 (0)

^a χ²_CMH = 35.90, P < 0.0001; ^b χ²_CMH = 0.98, P = 0.614; ^c χ²_CMH = 0.25, P = 0.881 compared among three age groups (Cochran-Mantel-Haenszel Statistic test). Data are presented as number (percentage) or mean ± SD.

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